huawei

[khelms at zcorum.com (Scott Helms)]

Is it possible?  Yes, but it's not feasible because the data rate would be
too low.  That's what I'm trying to get across.  There are lots things that
can be done but many of those are not useful.

I could encode communications in fireworks displays, but that's not
effective for any sort of communication system.
On Jun 14, 2013 8:13 PM, "Jimmy Hess" <mysidia at gmail.com> wrote:

> On 6/14/13, Scott Helms <khelms at zcorum.com> wrote:
> > Really? In a completely controlled network then yes, but not in a
> > production system.  There is far too much random noise and actual latency
> > for that to be feasible.
>
> I think you might be applying an oversimplified assumption the
> situation.   Noise limits the capacity of a channel,  and increases
> the number of gyrations required to encode a bit, so that it can be
> received without error.
>
> The degree of 'random noise',  'actual latency variation',  and
> 'natural packet ordering'  can be estimated, to identify the noise.
>
> Even with noise, you can figure out,  that the  average value which
> the errors were centered around increased by  5ms or 10ms,  when a
> sequence of packets with certain sizes,  certain checksum values,  and
> certain  ephemeral ports  were   processed in a certain sequence,
> after a sufficient number of repetitions.
>
> --
> -JH
>